I haven't read the vacum pressure yet , will do next weekend , I have called off the dyno shop for another week so I can get cleaned up , will let you know what it is , thanks a lot for your help , the other thing is even though I have cleaned the carbs out the new needle valves let by every now and then , with a tap on the adjutment nut it stops it , my regulator is set for 6 psi , so you think I should drop it ? If so what to ? ,

I also was pumping too much fuel in , it was spitting out and blowing unburnt fuel back , so I closed the choke half way and left it for 30 mins , then just cranked with not touching the pedal and it started staright away , but it does like the choke off , I presume these blown motors like a lot of air flow ,